You know J.J. Watt, Richard Sherman and Ndamukong Suh, but what about Everson Griffen and DeAndre Levy? They're among five relatively unknown defensive players having an impressive season. Here's a closer look at each.

Replacing a legend is never easy but in Baltimore, rookies Matt Elam and Arthur Brown flashed the instincts, physicality and athleticism in their second preseason game to help the defending champs imagine moving past future Hall of Famers Ed Reed and Ray Lewis.

Owner Steve Bisciotti has a go-to saying when tensions rise in Baltimore: Trust in Ozzie. The defending Super Bowl champions take aim at a repeat with numerous pressing needs armed with the resolve that comes with having GM Ozzie Newsome at the controls.

Brendon Ayanbadejo figured he'd get some attention during Ravens media availability on Thursday, but the absolute crush of reporters that surrounded him and swallowed up his poor tablemate, Josh Bynes, surprised him.

Ray Lewis announcing his intention to retire at the end of the postseason shouldn't be that much of a surprise, considering he's 37 and potentially returning from a torn triceps this Sunday after undergoing strenuous rehabilitation the past 12 weeks.